Disturbance and succession have long been of interest in ecology, but how landscape patterns of ecosystem structure and function evolve following large disturbances is poorly understood. After nearly 25 years, lodgepole pine (Pinus contorta var. latifolia) forests that regenerated after the 1988 Yellowstone Fires (Wyoming, USA) offer a prime opportunity to track the fate of disturbance-created ...

BACKGROUND AND AIM OF THE STUDY The study was designed to investigate the clinical performance of the On-X prosthetic heart valve in a multicenter experience. METHODS Between September 1996 and September 1999, 301 patients (56% males) underwent isolated On-X valve replacement (184 isolated aortic (AVR), 117 isolated mitral (MVR)) at 11 European centers under a standardized protocol. Average a...

Thirty five patients of either sex suffering from tuberculosis were administered streptomycin 0.75 g (im daily, upto 14 yr and above 45 yr of age) and 1 g (im daily for age 15-45 yr) with other antitubercular drugs and followed for audiological status. Five patients were dropped as they developed vestibular dysfunction. Varying degree of hearing loss was detected in 4 of 10 patients in group I ...

PURPOSE To examine change in parent and peer support for girls' physical activity (PA) across ages 9 to 15 yr and assess if girls who remain active during adolescence are differentially exposed to support when compared with girls who do not remain active. METHODS Participants included 174 non-Hispanic white girls assessed at ages 9, 11, 13, and 15 yr. Parental modeling and logistic support fo...

Experiments to document the long-term effects of clipping management on N requirements, soil organic carbon (SOC), and soil organic nitrogen (SON) are difficult and costly and therefore few. The CENTURY ecosystem model offers an opportunity to study long-term effects of turfgrass clipping management on biomass production, N requirements, SOC and SON, and N leaching through computer simulation. ...

This study estimated the length-weight relationship, sex ratio and population parameters of mantis shrimp, Harpiosquilla harpax from the coastal waters of Pantai Remis, Perak, Malaysia between February 2012 and October 2012. Total length and weight of 804 specimens of H. harpax were measured and the sex ratio was 1: 0.83 (M: F). Males of H. harpax were dominant over the females throughout the s...

This study estimated the length-weight relationship, sex ratio and population parameters of mantis shrimp, Harpiosquilla harpax from the coastal waters of Pantai Remis, Perak, Malaysia between February 2012 and October 2012. Total length and weight of 804 specimens of H. harpax were measured and the sex ratio was 1: 0.83 (M: F). Males of H. harpax were dominant over the females throughout the s...

It has been expected that the solar cycle may have an influence on production rate of cosmogenic tritium. However, prevailing anthropogenic bomb tritium in precipitation second half 20th century prevented such studies. We analyzed long-term data (1976–2020) activity concentration at Zagreb, Croatia, by various statistical methods looking for periodicity. Frequency and Wavelet analyses were perf...